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Annuity Payout Calculator

Determine the monthly income payment from a fixed period-certain annuity based on your lump-sum principal, interest rate, and desired payout timeline.

Quick answer: Calculate the level monthly payout a fixed period-certain annuity would pay from a lump-sum principal, interest rate, and payout period. Enter Principal (Lump Sum), Annuity Interest Rate, and Payout Period (Years) to personalize the estimate. It returns Monthly Payout, Total Payouts Over the Period, and Total Interest Earned so you can compare the impact before choosing a next step. Use it to compare long-term value, tax impact, risk, time horizon, and contribution choices.

SWReviewed by SwitchWize Research Desk · Last reviewed July 1, 2026
Monthly Payout
$1,320
Monthly Payout
$1,320
Total Payouts Over the Period
$316,779
Total Interest Earned
$116,779
Diagnostic

A $200,000 principal at 5.00% would pay out about $1,320 a month for 20 years.

That's $316,779 in total payouts, including about $116,779 in interest.

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What to do next

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Your action plan
  1. 1

    Set the target and timeline for this plan

    Calculate the level monthly payout a fixed period-certain annuity would pay from a lump-sum principal, interest rate, and payout period.

  2. 2

    Check the assumptions before using the result for a high-stakes decision

    Assumptions change the answer, especially when rates, taxes, or timing matter.

  3. 3

    Save the result to Money Map or use the linked next action

    Turn the result into a prioritized action instead of treating it as a one-off number.

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This is an educational estimate, not tax, legal, investment, or lending advice. Tax rules, rates, and eligibility change and depend on your full situation. Confirm with a qualified professional or the provider before acting.

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Frequently Asked Questions

Everything you need to know.

What does an example Annuity Payout Calculator calculation look like?
Using this calculator's own default assumptions, a principal (lump sum) of $200,000, annuity interest rate of 5% and payout period (years) of 20 produces an estimated monthly payout of $1,320 and total payouts over the period of $316,779. Enter your own numbers above to see how it changes for your situation.
How does changing the payout period affect my monthly payment?
A longer payout period spreads your principal and interest over more months, which lowers your monthly payment but increases the total interest your money earns. Conversely, a shorter period raises your monthly payment but reduces total interest accumulated.
Why does total interest earned depend on the payout period I choose?
Your principal earns interest each month until it's fully paid out. A longer payout timeline means your remaining balance continues earning interest for more months, so you accumulate more total interest even though each monthly payment is smaller.
Is the Annuity Payout Calculator free to use?
Yes. SwitchWize calculators are free, and you do not need an account to run scenarios or view the result.
Does using the Annuity Payout Calculator affect my credit score?
No. Using a calculator does not trigger a credit check. A credit impact can occur only if you apply directly with a lender, card issuer, or provider.
Are the results personalized financial advice?
No. Calculator outputs are educational estimates based on the inputs you enter. Review assumptions and confirm terms directly with providers before making a financial decision.
What should I do after seeing the result?
Use the recommendation module on this page to compare brokerage accounts, or run Money Map to compare this investing & retirement decision with your other opportunities.
How does SwitchWize choose related offers?
Related offers are matched by the calculator surface (brokerage) and ranked using SwitchWize data such as rate, fees, trust signals, product fit, and switching friction. Paid relationships do not change organic ranking order.
How fresh are the rates and offers shown?
Rate and offer data is reviewed on a recurring cadence and every offer module shows review context or links to the methodology and disclosure pages.
Where can I see the ranking methodology?
The SwitchWize methodology page explains how rate freshness, editorial review, affiliate disclosure, and category ranking factors work.
Can Money Map use this result?
Yes. Money Map is the broader diagnostic path: it compares savings, mortgage, cards, and debt so you can see whether this calculator result is your highest-impact next move.

Why This Matters

Understanding your monthly annuity payout helps you plan retirement income and budget over a set period. The calculator shows how your principal grows through interest and gets distributed evenly across your chosen timeframe, revealing both your monthly income stability and the total interest your money will earn. This clarity is essential for comparing annuity options against other retirement income strategies.

How to Use It

  1. 1Enter your lump-sum principal: the amount you're using to fund the annuity.
  2. 2Enter the annuity interest rate: the annual rate at which your balance will grow.
  3. 3Enter your desired payout period in years: how long you want to receive monthly payments.
  4. 4Review your monthly payout amount, total payouts over the entire period, and total interest earned during that time.
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